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[Advanced series of D3.js-5.0] histogram, d3.js5.0

[Advanced series of D3.js-5.0] histogram, d3.js5.0 The Histogram is used to describe the probability distribution. D3 provides the Histogram layout Histogram for data conversion. Suppose there are arrays a = [10, 11, 11.5, 12.5, 13, 15, 19, 20 ~ The value range of 20 is divided into five segments: 10 ~ 12, 12 ~ 14, 14 ~ 16, 16 ~ 18, 18 ~ 20 Which of the following

[D3.js advanced series-9.0] interactive prompt box, d3.js9.0

[D3.js advanced series-9.0] interactive prompt box, d3.js9.0 In general, too many texts should not exist in charts. However, sometimes some text is required to describe certain graphic elements. Then, you can implement an interaction: When you move the mouse to a certain graphic element, a prompt box appears, containing the description text. This is a simple, universal notebook that applies to almost all ch

[D3.js pro series-4.0] matrix tree, d3.js4.0

[D3.js pro series-4.0] matrix tree, d3.js4.0 A matrix tree (Treemap) is also an extension of hierarchical layout. areas are divided into rectangular sets based on data. The size and color of the rectangle are the reflection of data. As shown in figure 1, many portal websites arrange photos in rectangles of different sizes. This is the application of the matrix tree. Fig. 1 http://www.texastribune.org/2010/

Data Visualization and D3.js, data visualization D3.js

Data Visualization and D3.js, data visualization D3.jsData Visualization Data visualization is a topic for how to better present data. After the emergence of big data, it becomes more important and urgent. Previously, using excel for column charts, pie charts, and line charts was one of the most commonly used data visualization methods. On the WEB end, the popular extjs, fusioncharts, and jfreechart were us

How to draw multiple curves with D3 step by step and draw curves with D3 step by step

How to draw multiple curves with D3 step by step and draw curves with D3 step by stepBar Chart: http://bl.ocks.org/mbostock/3885304This is the basic form of a bar chart.Axis is a number Axis;Tickets is the ruler on the number axis. The second tickets parameter % can display the percentage of [0, 1;RangeRoundBands is divided by interval on [0, width], which is suitable for the column chart. rangePoints is di

[D3.js selection set and data details-4] processing method and processing template of enter and exit, d3.jsexit

[D3.js selection set and data details-4] processing method and processing template of enter and exit, d3.jsexit After data is bound, the selection set is divided into three parts: update, enter, and exit. What are the solutions for these three parts? This article describes the processing method and a common processing template.1. How to Deal with enter If there are not enough elements, the processing method

"D3.js Practice Tutorial Special article" Pornhub released D3-based netizens watch adult video time-length distribution interactive map

Learning D3.js (hereinafter referred to as D3) also has a period of time, run D3 do a few projects. I found that Chinese D3 tutorials very few, foreign materials but require a certain degree of English reading ability (recommended site: Http://bl.ocks.org/mbostock), so the germination of writing a

[D3.js entry series, d3.js entry series

[D3.js entry series, d3.js entry series My personal blog is: www.ourd3js.com The csdn blog is blog.csdn.net/lzhlzz. Please indicate the source for reprinting. Thank you. Pack is used to contain the relationship with the object to be included. It also indicates the weight of each object. A circle is usually used to represent the former, and the circle is used to represent the latter. First read the data used

"D3.js Practice Tutorial 01" D3 Basic operations

Learning D3.js (hereinafter referred to as D3) also has a period of time, run D3 do a few projects. I found that Chinese D3 tutorials very few, foreign materials but require a certain degree of English reading ability (recommended site: Http://bl.ocks.org/mbostock), so the germination of writing a

[D3.js advanced series-1.0] text line feed and d3.js line feed

[D3.js advanced series-1.0] text line feed and d3.js line feed Adding text in SVG uses text elements. However, this element cannot be automatically wrapped, and the excess content cannot be displayed. What should I do? Preface to the advanced series Start to write Advanced series tutorials today. In other words, due to my limited strength, it is not necessarily guaranteed that the entry-advanced level is mo

[D3.js data visualization practices] -- (1) Draw gridlines and d3.js Grids

[D3.js data visualization practices] -- (1) Draw gridlines and d3.js Grids We often use regular charts (histograms, line charts, and so on) to present data. To clearly indicate which value range of the data on the number axis, the value is directly indicated in the rectangle and point. In addition to this method, you can also use a grid with pale tones as the background reference. This article describes how

[D3.js pro series-1.0] Reading CSV table files, d3.jscsv

[D3.js pro series-1.0] Reading CSV table files, d3.jscsv In the tutorials of the Getting Started series, we often use d3.json () functions to read files in json format. The json format is very powerful, but it may not be suitable for common users. Common users prefer table files generated using Microsoft Excel or OpenOffice Calc, which are easy to edit and easy t

[D3] Create Labels from Non-numeric Data with Ordinal Scales in D3 v4

When the your data contains discrete, Non-numeric property values, the need to format or convert before displaying, d3.scaleOrdinal() Is the API for you need. Maybe need to convert a ' pass '/' fail ' field to ' green '/' red ' for coloring your bubble chart? This lesson shows you exactly.function scaleordinal () { var ordinalscale = d3.scaleordinal () . Domain ([' poor ', ' good ', ' Great '])

[D3.js advanced series-10.0] Mind Map, d3.js10.0

[D3.js advanced series-10.0] Mind Map, d3.js10.0 The nodes of the Mind Map have hierarchical and affiliation relationships, which are similar to the shapes in which branches stretch from the trunk. As mentioned above, five layout and cluster layout are expanded by hierarchical layout) the layout chart has a "Tree" structure ". Therefore, you can use these two la s to create a mind map. 1. Construction idea

[D3.js advanced series-5.1] color interpolation and linear gradient, d3.js Interpolation

[D3.js advanced series-5.1] color interpolation and linear gradient, d3.js Interpolation Color interpolation provides two RGB color values. The values between two colors are calculated using the interpolation function. A linear gradient is a filter added to an SVG image. You only need to give the color values at both ends. 1. Color Interpolation Color interpolation has been mentioned in chapter 5.0 of the a

[D3.js advanced series-7.0] location, d3.js7.0

[D3.js advanced series-7.0] location, d3.js7.0 Sometimes you need to tell the user some goals on the map, if the target can be expressed by only one coordinate, it is called "annotation ".1. What is Annotation Annotation is an element that can be expressed by only one coordinate on a map. For example, draw a circle at the longitude and latitude (116, 39) and draw a symbol at (108, 30, the annotation can als

[D3.js advanced series-6.2] drag and drop a pie chart, d3.js6.2

[D3.js advanced series-6.2] drag and drop a pie chart, d3.js6.2 This article describes a more complex drag-and-drop application, that is, the drag-and-drop Pie Chart Section. In Chapter 9.1, I will explain how to create a pie chart. Each part of a pie chart is represented by an arc with width. When interacting with users, it is interesting to drag and drop each part.1. Creating a pie chart Unlike [Entry-C

[D3.js selection set and data details-2] bind data with data (), d3.jsdata

[D3.js selection set and data details-2] bind data with data (), d3.jsdata In D3, data binding is mostly done by the data () function. How does it work? What is the difference between it and datum? The data () function can bind array items to each element separately and set binding rules. Data () can also handle the inconsistency between the array length and the

[D3.js selection set and data details-5] processing template application, d3.js details

[D3.js selection set and data details-5] processing template application, d3.js details In [select set and data-4], a processing template for update, enter, and exit is introduced. This template is very common. This article will explain its usage through an example.1. Template Review the template mentioned in the previous chapter. // After the data is bound, return var update = selection for update, enter,

[D3.js advanced series-8.0] marking and d3.js series 8.0 Marking

[D3.js advanced series-8.0] marking and d3.js series 8.0 Marking Sometimes, you need to draw a line on the map, which means "from somewhere to somewhere". In this case, the line drawn on the map is called "". 1. What is the marking line? A baseline is an element on a map that requires more than two coordinates. For example, connecting Beijing and Shanghai. There are two graphical elements used to draw a ba

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